Error at boot with sys-fs/udev-168-r1: runtime directory `/run/udev` not writeable, for now falling back to `/dev/.udev` Reproducible: Always
+1 here That message is not the error, though. The actual error seems to be related to "populate_dev()" (in /etc/init.d/udev) beeing lazy. "check_udev_works" does not find /dev/zero and tries to kill udev (no partitions get mounted and a horde of startup error occur after that). I added a sleep delay in "_start()" just before "check_udev_works" call and that solved the problem for me. Maybe this info helps the maintainers find the actual problem (I'm available for more info on this).
Looks to be a warning message during a transition period. The following link was posted on the forum: http://lists.fedoraproject.org/pipermail/devel/2011-March/150031.html
Easy solution is to `mkdir -p /run` then emerge openrc-9999 this will give you the support you need for /run/udev to be properly populated. I am unsure how we will handle creating the directory yet, we might handle it in openrc or udev will have to discuss it further before we can answer that question.
Closing this bug, as it is about the printed message and that was removed. If you have different issues, please open a new bug.